ONLY ON 4 TONIGHT, IT IS THE LATEST WEB VIDEO TO GO VIRAL, GETTING ATTENTION NOW FROM PEOPLE ALL AROUND THE WORLD. IT WAS MADE RIGHT HERE IN PITTSBURGH. ALL RIGHT, SO, IT'S AN ADVERTISEMENT FOR A PITTSBURGH CRIMINAL DEFENSE ATTORNEY, AND PITTSBURGH'S "ACTION NEWS 4" REPORTER MATT BELANGER WAS THE FIRST TO TALK TO THE MAN BEHIND THE AD. AND REGARDLESS OF WHETHER YOU AGREE WITH THE APPROACH, IT'S WORKING. ? Reporter: IT'S AN EDGY ONLINE COMMERCIAL FOR LEGAL SERVICES YOU JUST HAVE TO SEE TO BELIEVE, WHERE CRIMINALS APPEAR TO BE THANKING THEIR LAWYER FOR GETTING THEM OUT OF TROUBLE. ? THANKS, DAN. Reporter: DAN IS 32-YEAR-OLD DANIEL MUSIC. HE'S A FORMER RAPPER TURNED ATTORNEY. THE UNIVERSITY OF PITTSBURGH LAW GRAD MAY JUST BE STARTING OUT IN HIS CAREER -- THANKS, DAN. Reporter: BUT THANKS TO THIS WEB AD WITH MORE THAN 80,000 VIEWS, HE'S ALREADY A HOUSEHOLD NAME. LOOK AT THAT, THREE, TWO, ONE. Reporter: DON'T BELIEVE ME? EVEN IN THE MIDDLE OF OUR INTERVIEW, SOMEONE STOPPED AND ASKED FOR A PICTURE. I MAY HAVE A LAW DEGREE, BUT I THINK LIKE A CRIMINAL. Reporter: MUSIC SAYS HE WANTED TO REACH YOUNGER CLIENTS WHO HEAVILY USE SOCIAL MEDIA, AND IT'S WORKED. HE SAYS HE'S RECEIVED MORE THAN 500 PHONE CALLS IN THE PAST TWO DAYS THE AD HAS BEEN ONLINE. THE MOST EFFECTIVE WAY TO REACH THE PEOPLE THAT WE WERE TRYING TO TARGET WAS TO MAKE SOMETHING THAT WAS NEW AND FRESH AND DIFFERENT. Reporter: AND FOR THE SKEPTICS OUT THERE, MUSIC WAS MORE THAN HAPPY TO SHOW US HIS LEGAL CREDENTIALS. AND THOSE CRIMINALS YOU SEE IN THE AD, THEY'RE ALL MUSIC'S FRIENDS AND RELATIVES. IT WAS VERY MUCH A TYPICAL HOMETOWN PITTSBURGH THING, YOU KNOW? YOU CALL UP YOUR FRIENDS, YOU GET A BUNCH OF COOL, CREATIVE PEOPLE TOGETHER, YOU BUILD ON SOMETHING AND YOU GO GET IT DONE. ALL PARTICIPANTS IN THE COMMERCIAL ARE ACTORS AND THEIR PARTICIPATION SHOULD NOT BE CONSTRUED AS AN ENDORSEMENT. Reporter: IF YOU WATCH THE WHOLE THING, YOU'LL HEAR A DISCLAIMER AT THE END. MUSIC SAYS IF SOMEONE EXPLAINS HOW THE AD BREAKS SOME RULE HE MAY NOT BE AWARE OF, HE'LL TAKE IT DOWN, BUT UNTIL THEN, IT STAYS. YOU'RE ENTITLED TO YOUR OWN OPINION JUST LIKE I'M ENTITLED TO TRY TO CONNECT WITH MY CLIENTS IN A WAY THAT I SEE FIT. I WANT TO BUILD MY PRACTICE. I WANT TO BE A SUCCESSFUL ATTORNEY BY ALL THE CONVENTIONAL STANDARDS OF BEING ONE, BUT I WILL BE MYSELF WHILE I DO IT. HOW, GET THIS, MUSIC TELLS ME HE ACTUALLY HAD A NEAR-DEATH SCARE LAST YEAR WHEN HE WAS HOSPITALIZED. HE LOST A LOT OF WEIGHT BECAUSE OF THE CONDITION. HE'S RECOVERED NOW, BUT HE SAYS THAT THAT EXPERIENCE REALLY CHANGED HIM. HE'S GOING TO, YOU KNOW, DO WHAT HE WANTS, SAY WHAT HE THINKS, AND I THINK THAT OBVIOUSLY COMES THROUGH IN THIS AD. AND SOME PEOPLE WILL APPRECIATE THAT. HE'S GOING TO GET SOME BUSINESS FROM THIS.

Israeli Prime Minister Benjamin Netanyahu warned Tuesday that a proposed agreement between world powers and Iran was "a bad deal" that would not stop Tehran from getting nuclear weapons -- but would rather pave its way to getting lots of them and lea...